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Immersion Thermistor Probes with 1/8" NPT Fitting & Lead Wire

Thermistor Probe with Threaded Mounting Fitting


Item# ON-910-44004

Volume discounts available
Volume Discount Schedule
Quantity Price each
1-9 $96.29
10-24 $91.48
25-99 $86.66
100-499 $81.85
500-999 $77.03
1000+ $72.22

In stock

Lead Time (If not in stock): 5 weeks
Thermistor Probe with Threaded Mounting Fitting ON-910-44004 ON-910-44004
  • Immersion Sensor with 1/8NPT Mounting Thread
  • The ON-910 Includes a 4.5' Long, 5/32 Diameter Probe with 12' long PVC Insulated Lead Wires. The ON-970 Includes a 5' Long, 1/8' Diameter Probe with 12' Long PFA Insulated Lead Wires.
  • Can be Used in Liquid Immersion and Pressurized Applications
  • Available with Resistances of 2252 Ohms, 3000 Ohms, 5000 Ohms, 10,000 Ohms and 30,000 Ohms at 25°C

ON-910-44004 Model Options

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Edit these specs to order a different model. Not all combinations are valid. Options compatible with previous selections will be in bold.

*Highlighted options are not compatible. Please select a different combination.

Process Temperature Max
Process Temperature Range
Nominal Output
Probe Diameter
Probe Length
Cable Insulation
Cable Length
Termination Connection Type
Process Temperature Unit
Process Temperature Min
Sensor Application
Process Connection Size
Number Of Wires
Sheath Material

These thermistor sensors are designed for applications where the sensor needs to be immersed into a process and mounted using a 1/8NPT mounting thread. The precision thermistor sensor is protected by a 300 series stainless steel sheath, and has PFA or PVC insulated extension wires.
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Rated 4 out of 5 by from Equipment is good. Shipment not so much The thermistor works very well and is of good quality. It does not make any sense that it is shipped without a data sheet or the tables to convert the resistance readings to temperature. You need to search this website for the tables in order to use it.
Date published: 2019-06-19
Rated 4 out of 5 by from wiring is not heavy gauge The thermister is as shown in pictures. the wiring is very light gauge and there is no good way to provide strain relief past the threaded fitting. extending the tube thru the fitting and over the wiring would allow use of heat shrink or hose strain relief. I have ordered a unit without the fitting and will use compression fitting over the tube instead of the fitting.
Date published: 2019-01-30
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I just received a shipment of ON-970-44033. Where can I find the Steinhart-Hart coefficients for these probes?

Asked by: rphilip
Thank you for your inquiry rphilip. Please review the document from this link which has those coefficients:
Answered by: Application Engineer MC
Date published: 2023-07-06

What is the time constant for the ON-970-44033?

Asked by: JamesHaile
Thank you for your inquiry! The time constant is 63% of the final value with a response time of 25 seconds or less.
Answered by: Application Engineer CK
Date published: 2021-05-08
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